Whole-house air tightness testing to measure total air infiltration and meet California Title 24 energy compliance requirements. Same-day results and certificate filing.
A blower door test pressurizes or depressurizes a home using a large calibrated fan mounted in an exterior door frame. By measuring the airflow required to maintain a specific pressure difference, we can calculate exactly how airtight — or leaky — the building envelope is.
California Title 24 requires blower door testing for many new construction and renovation projects to verify the building meets air infiltration limits. Roo's Ratings performs these tests with professional equipment and delivers your results the same day.
The test typically takes 30–60 minutes and is non-destructive. We mount a calibrated fan in a door frame, seal the opening around it, and use the fan to pressurize or depressurize the building. Software records the results and generates a compliance report on the spot.
Book a blower door test on its own — commonly needed when a contractor just needs to verify air sealing before final inspection.
Save when you add a blower door test to any core HERS/ECC inspection on the same visit. Call us for current bundle pricing.
Pair with a duct leakage test for comprehensive air leakage reporting — the most popular option for new construction projects requiring both tests for Title 24 compliance.
Fast scheduling, same-day results and filing. Call or request a quote online.
(530) 300-4472